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Post by tsanchez on May 9, 2017 7:26:32 GMT -8
Great project!
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Post by n2ojoe on May 9, 2017 17:10:01 GMT -8
Thanks! I've been enjoying some break-in miles and so far I'm pretty happy with the combo.
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Post by n2ojoe on Jul 21, 2017 5:45:47 GMT -8
I pulled the engine out last Friday for a few upgrades(?). It runs well but power sure falls flat over 5200 rpm's. I'm sure the log manifolds are killing it but I'll need a higher power band and less torque to hook up on the Polyglas. I retarded the cam to try and move the power higher up. Ditched the stock .049" head gaskets for Cometic .030", which raises compression from 10.38 to 10.88. Changed the lifters from Comp high energy to pro magnums (anti pump up) again hoping to help with higher rpm's. This required swapping out my double valve springs for single stockers for break in. Also throwing in a 160 t-stat and a fan clutch. Yeah, I'm full of good ideas... Does anyone have a lead on a pair of Rebel Machine exhaust manifolds??
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Post by n2ojoe on Jul 28, 2017 17:20:27 GMT -8
I made a few passes at Milan on Wednesday finally. 86 degrees and humid, but I needed to see rpm's at the end of the 1/4 to help decide gearing. Managed 2.03 60' and 14.2 @ 98 mph. The stock 3.54 rear and 2.23 T10 just doesn't launch well, and the engine is only 4600 rpm's in the traps. I'd like a 3.91 but I have a 4.11 on the shelf already, which looks like around 5500 rpm's at the stripe. Guess I'll try that next.
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Post by sc397 on Sept 18, 2017 6:58:47 GMT -8
Hey Joe, I heard a rumor that you did well at the Pure-Stock drags. Tell us all about it!
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Post by n2ojoe on Sept 19, 2017 7:31:16 GMT -8
Yep, we had a GREAT time at the Pure Stock Drags this weekend! Good weather and friends, and some very cool muscle on the property. There were 6 AMC's racing, including 3 SC360's, a Scrambler, and 2 AMX's. Also, Bill and Jack K. drove up in Bill's new 63 Rambler, and Tom Guar had his Machine there. I hadn't got to test since I rebuilt the rear axle with the 4.10's, Detroit Locker, and 1 piece Dr. Diff axles. 1st gear is MUCH better now, and the engine RPM's are right at 5500 at the traps as I hoped. Friday was open testing, and your best run of the day counted as your qualifier for the race on Sat. I managed a best of 13.85 at 100 mph, with the biggest gain in just learning how to launch the car well. On Saturday, they line the cars up in staging from slowest at the front to quickest at the rear, and you are paired up with the car that ran closest to you for a 3 round heads up shootout. I was paired with a 1970 Vette 454 4 speed that qualified at 13.87. First round of the shootout he got a much better reaction time, but I caught him and won with my 13.74 to his 13.82 and a margin of victory of .0003 seconds! Second round we had almost identical reaction times, but I had my best 60' of the weekend at 1.98, while he suffered from bad wheelhop. I ran a new best of 13.66 to his 14.88 for the win. He opted out of running the third round since he had already lost, and angrily told me he had enough and was loading up LOL... Corvette guys Overall a really fun event and something out of the ordinary, literally a car show going down the track with some super high quality cars doing what they were meant to do. Catch the rules and look for updates on the event at psmcdr.com or pics on their Facebook page.
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Post by sc397 on Sept 19, 2017 7:36:11 GMT -8
Nice Job Joe! man, I wish I could have been there. WTH, looks like you need new shocks on the front of that thing. LOL!
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Post by n2ojoe on Sept 19, 2017 7:41:54 GMT -8
Thanks Rick! Do you know anyone who could help me choose good shocks?
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Post by 69Rebel on Sept 19, 2017 19:15:35 GMT -8
13.66 on a stock 390 and Polyglas tires. I'd say that's pretty damn good.
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Post by n2ojoe on Sept 20, 2017 20:16:24 GMT -8
13.66 on a stock 390 and Polyglas tires. I'd say that's pretty damn good. Thanks, I was very pleased given the little test time I have with the car. Temps in the low 80's and D/A of around 3200' give me hope for 13.40's yet, maybe better. I had a fuel/air meter on the car all day Friday and have a decent ratio though the gears, but a couple hundred feet before the finish line at 95-100 mph it starts going lean. I thought maybe it's running out of fuel (pump?) but Stickshifter suggested the Ram Air hood may be really working by then causing the lean mixture. More work to do!
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Post by fast401 on Sept 21, 2017 9:13:13 GMT -8
Damn nice job! Corvette guys are sore losers. I blew the doors off one years ago and his Buddy rubbed it in real good!
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Deleted Member
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Post by Deleted on Sept 21, 2017 19:04:40 GMT -8
Joe, what's your opinion of the dr diff axles? Besides having to shorten em to the length you need. I'm gonna be doing a 70 rear with the same axles and a spool over the winter. Curious, what type of bearing do they supply with the axles,tapered roller, ball, etc. I've heard similar to moser, whereas it doesn't allow outer seal to be retained? Any info appreciated! Thanks..
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Post by spud on Sept 22, 2017 7:11:46 GMT -8
Yeah! Trailer those chevys and make em cry lol
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Post by n2ojoe on Sept 25, 2017 0:44:38 GMT -8
Joe, what's your opinion of the dr diff axles? Besides having to shorten em to the length you need. I'm gonna be doing a 70 rear with the same axles and a spool over the winter. Curious, what type of bearing do they supply with the axles,tapered roller, ball, etc. I've heard similar to moser, whereas it doesn't allow outer seal to be retained? Any info appreciated! Thanks.. The axles are a pretty nice quality overall. I had a few minor issues with the install though, but nothing too serious. The bearings are a sealed design, and come with new inner seals for the housing. No outer seal is used, so I cut the rubber from my originals and used the bare seal plates as axle bearing retainers. The problem is once the wheel bearing and bearing lock collar are pressed into place they are too close to the inner grease seal and the collar rubbed against the seal at first. It took extra effort with a seal driver and hammer to get the seal into the housing just enough to clear. The instructions say to press on the bearing with the part number towards the inside. The bearing inner race protrudes slightly more on that side than the other, which also doesn't help the problem with clearing the seal. I might try pressing the bearing on reverse if I install another set. Also, the wheel studs are a screw in race type and very long. I have tall acorn lug nuts that wouldn't quite tighten enough. The axle flange register to center the wheel is also tall, and my Machine wheel center caps wouldn't fit over them. A 5/16" wheel spacer was used to fix both problems.
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Post by amxdreamer on Oct 5, 2017 8:24:46 GMT -8
Nice work Joe! I'd be thrilled if mine would dip into the 13's. 360/auto with AC/PS/PB etc ran a 14.3 @ 96 here on the west coast in good air.
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